On Friday October 10 Sven Mattys, Department of Psychology, University of York, will give his talk:
Effects of cognitive load on speech perception
Improving the validity of speech-recognition models requires an understanding of how speech is processed in everyday life. Unlike listening conditions leading to a degradation of the signal (e.g., noise), adverse conditions that do not alter the integrity of the signal (e.g., cognitive load, CL) have been comparatively under-studied. Drawing upon behavioural and imaging methods, our research shows that CL reduces sensitivity to phonetic detail and increases reliance on lexical knowledge. Importantly, we also show that increased reliance on lexical knowledge under CL is a cascaded effect of impoverished phonetic processing, not a direct consequence of CL. A CL-related deactivation of parts of the auditory cortex associated with early phonetic analysis confirms the early, sensory locus of CL. Ways of integrating CL into the functional architecture of existing speech-recognition models are presented.
Capture: Professor Sven Mattys with PhD students Huarda Valdés-Laribi and Dorina Strori, Department of Psychology, University of York
Read more about Sven Mattys here